Victoria Line Closed By Concrete And Water Flood

Update: It has been confirmed that a mixture of concrete and water has flooded a Victoria Line control room. The line is closed between Warren Street and Brixton, with severe delays on all other sections. A limited replacement bus service is in operation.

Image via Us Vs Th3m. More are shown on their site.
The story was scooped by Us Vs Th3m, and has since been confirmed by a Transport for London spokesperson.

Original article

If you're planning on heading home any time soon, avoid the Victoria Line.

Then this:

So, quite a serious flood, then. The plot thickens (literally) when you see this report over on Us Vs Th3m. The site's as-yet unsubstantiated explanation is that a control room has been accidentally flooded by quick-setting concrete. We repeat that this hasn't been officially verified.

In response to enquiries about the rumour, @VictoriaLine replied 'No, I can't confirm that', but wasn't able to deny it either. The mishap is utterly bizarre if true, or an utterly brilliant wind-up if false.

We'll update this story with any developments, or if the rumour of concrete is...reinforced.

Update 5.15pm: Us Vs Th3m stands by its story, but won't say how it got the concrete photos.

Update 5.30pm: The rumours of a concrete spill appear to have been confirmed by Transport for London.